There is unallocated space directly after (to the right) of the volume, as shown in the graphic above.Disk Management or Computer Management was opened with administrator permissions.If Extend Volume is grayed out, check the following: Select and hold (or right-click) the volume that you want to extend, and then select Extend Volume. After Computer Management opens, go to Storage > Disk Management. Open Disk Management with administrator permissions.Īn easy way to do so is to type Computer Management in the search box on the taskbar, select and hold (or right-click) Computer Management, and then select Run as administrator > Yes.

Here's how to extend a volume into empty space immediately after the volume on the drive: To extend a volume by using Disk Management If you're using Windows Server 2012 R2 or later, you can also use Azure File Sync to extend your volume into the cloud.įor details, see Planning for an Azure File Sync deployment on Windows Server. The volume to extend also must be formatted with the NTFS or ReFS file systems. You can use Disk Management to add space to an existing volume, extending it into empty space on the drive, but only if the empty space doesn't have a volume on it (it's unallocated) and comes immediately after the volume you want to extend, with no other volumes in-between, as shown in the following image.

Applies To: Windows 10, Windows 8.1, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

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